OK so this is a very old thread and I thought I would give you all an update on my auto situation.
In august I decided I'm not spending anymore money on my car modifying it, so the decision was made to remove the manualised kit but retain the shift kit.
I sold the manualised kit to my mate (also a forum member here) for a cheap price, he is now running a keas shift kit with the MV black box and the B&M ratchet along with BIG Garrett turbo, injectors, z32 afm, PFC making kW and the auto is going great.
That is an awesome price. It will be good to hear how it all goes.
The shifts can be harsh if your moving slowly (traffic/parking lots) and it tends to not be sure whether it should be in first or second (constantly shifts up and down between gears), the way you overcome this is to engage the snow button which will lock it in second, this will give a smooth ride with no shifting unless you get over km when it will shift to third.
I would suggest you possibly find someone local to you using a shift kit and ask to be taken for a drive in the car.